问题
多项选择题
炮采工作面()工序应避免相互干扰,最好将两道工序安排在不同班中作业。
A.移输送机
B.回柱
C.装煤
D.爆破
答案
参考答案:A, B
炮采工作面()工序应避免相互干扰,最好将两道工序安排在不同班中作业。
A.移输送机
B.回柱
C.装煤
D.爆破
参考答案:A, B
We humans live in different parts of the world, but we have the same “mother”. She gives us everything we need in our daily life. She is our Mother Earth. Everybody wants to live in a green city. A green city is a healthy and pleasant place for people to live in. It can get its energy from something like solar and wind power. Also, it is connected by clean public transportation.
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